Bell in Vacuum Experiment for Sound Wave Demonstrations Size_Small this combined steel-and-brass weight set

this combined steel-and-brass weight set on a blue molded tray covers 10 to 1990 grams in 10 gram increments

Demonstrates the one-way current behavior of a rectifier diode rated up to 6A at 400V

Heavy-duty powder-coated square dual boss head joins two rods up to 15mm at right angles on retort stand frames

Three-part color-coded human skull model differentiates bone regions and sutures for detailed cranial anatomy instruction

Bell in Vacuum Experiment for Sound Wave Demonstrations Size_Small this combined steel-and-brass weight setIllustrates that sound needs a medium to travel through a 10 inch acrylic bell jar with internal buzzer, rubber stopper, and lead plugs for pump plate connection during evacuation.